Which of the following is a form of cyber attack that involves stealing sensitive data from a system? MCQ with Answer and Explanation

Question
Which of the following is a form of cyber attack that involves stealing sensitive data from a system?
A. Data breach
B. Man-in-the-middle
C. Denial-of-service
D. Phishing
Answer: Option A
Solution (By JKSSB Mock Tests)
A data breach is a security incident where sensitive, protected, or confidential data is accessed or stolen without authorization.
This question belongs to: Computer Cyber Security
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Practice More Cyber Security Questions

Question #1
Which of the following is a type of malware that displays unwanted pop-up ads?
A. Ransomware
B. Spyware
C. Adware
D. Trojan
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Correct Answer: Option C

Explanation:
Adware is a type of malware that automatically displays or downloads unwanted advertisements, often in the form of pop-up ads, without the user's consent.
This question belongs to: Computer Cyber Security
Question #2
What form of security exploit occurs when an application inputs more variable data into a memory block than it can hold, overwriting nearby execution instructions with malicious payloads?
A. Cross-Site Scripting
B. Zero-Day Exploit
C. Buffer Overflow
D. SQL Injection
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Correct Answer: Option C

Explanation:
Buffer overflows occur when input variables exceed memory segment boundaries, allowing malicious payloads to alter memory instructions and execute arbitrary commands.
This question belongs to: Computer Cyber Security
Question #3
Which of the following is a common technique used in ransomware attacks?
A. Sending spam emails
B. Encrypting files and demanding payment for decryption
C. Installing adware
D. Stealing passwords
Discuss
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Correct Answer: Option B

Explanation:
Ransomware attacks typically involve encrypting the victim's files and demanding a ransom payment in exchange for the decryption key.
This question belongs to: Computer Cyber Security
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